No.
2. Can you shape tween multiple objects on the same layer?
Yess.
3. What color is a correct shape tween?
Light green, yo.
4. How do you shape tween text?
-Draw an object, then convert it to a symbol (graphic)
-Delete the symbol (backspace)
-Take the text tool and put some text on the stage.
-Convert the text into a symbol with it set to graphic.
-Delete the text symbol from the stage.
-Go to the first frame, and drag the shape in from the library.
-Go to frame 30 and insert a blank keyframe.
-Take the text symbol and set it in the corner of the stage.
-Click Modify, the break apart until break apart greys out.
-Go back to the first frame and in the properties menu, set the tweening tab to Shape.
Taadaa.
Morphing circle to box-


and I didn't have enough time for the other one.